During my first and second 0.95 campaigns I found 1 Revenant and 2 Phantom. In the second campaign, one Phantom even had 2 (S) hullmods. IIRC, all those ships were kind of close together in a corner of the sector, in both campaigns.
Currently in my third campaign, I found one Phantom. This campaign is supposed to be a phase ship run, and since Phase Corps bonuses gets lower when having above 30-DP worth of phase ships, and since Phantom counts toward that score... it stays in storage. I had up to 44-DP worth of real military phase ships for a while (1 destroyer + 3 frigates), now I'm at 91 or something with just 3 ships (1 capital + 2 frigates). The Phase Corps bonuses are reduced to about 1/3rd of their max values.